Figure 2
From: Kinetics of slow release of nitrogen fertiliser from multi-layered nanofibrous structures
FTIR spectra of urea and single-, triple-layered PLLA nanofibres loaded with urea. Pure urea (Urea), PLLA nanofibre containing 10% urea (*S+ 10%Urea), PLLA nanofibre containing 20% urea (*S+ 20%Urea), PLLA nanofibre containing 40% urea (*S+ 40%Urea), PHB/PLLA/PHB nanofibre containing 10% urea (**T+ 10%Urea), PHB/PLLA/PHB nanofibre containing 20% urea (**T+ 20%Urea), PHB/PLLA/PHB nanofibre containing 40% urea (**T+ 40%Urea). *S: Single-layered PLLA nanofibre mat, **T: Triple-layered PHB/PLLA/PHB nanofibrous structure.
